Best Event Brokers in the UK

PubNub is a real-time communication platform that provides APIs, SDKs, and cloud infrastructure for building interactive applications. The platform enables developers to exchange messages and synchronize data between users, devices, and services through a globally distributed publish/subscribe network. Its capabilities include real-time messaging, presence detection, message history, data synchronization, and event-driven processing. PubNub supports applications such as live chat, multiplayer gaming, collaborative software, IoT monitoring, and real-time dashboards. The platform also provides serverless functions, access controls, push notifications, analytics, and integrations with external services. Developers can use PubNub to build scalable real-time features without managing the underlying messaging servers, network infrastructure, or connection management systems.

Amazon EventBridge is a serverless event bus that makes it easy to connect applications together using data from your own applications, integrated Software-as-a-Service (SaaS) applications, and AWS services. EventBridge delivers a stream of real-time data from event sources, such as Zendesk, Datadog, or Pagerduty, and routes that data to targets like AWS Lambda. You can set up routing rules to determine where to send your data to build application architectures that react in real time to all of your data sources. EventBridge makes it easy to build event-driven applications because it takes care of event ingestion and delivery, security, authorization, and error handling for you. As your applications become more interconnected through events, you need to spend more effort to find events and understand their structure in order to write code to react to those events.

Simplify your event-based apps with Event Grid, a single service for managing routing of all events from any source to any destination. Designed for high availability, consistent performance, and dynamic scale, Event Grid lets you focus on your app logic rather than infrastructure. Eliminate polling—and the associated cost and latency. With Event Grid, event publishers are decoupled from event subscribers using a pub/sub model and simple HTTP-based event delivery, allowing you to build scalable serverless applications, microservices, and distributed systems. Gain massive scale, dynamically, while getting near-real-time notifications for changes you’re interested in. Build better, more reliable applications through reactive programming, capitalizing on guaranteed event delivery and the high availability of the cloud. Develop richer application scenarios by connecting multiple possible sources and destinations of events.

EventBridge is a serverless event bus service that connects to Alibaba Cloud services, custom applications, and SaaS applications as a centralized hub. EventBridge can also use the CloudEvents 1.0 specification to route events among these services and applications. EventBridge helps you build loosely coupled and distributed event-driven architectures. Provides comprehensive event rule management, including creating, updating, and querying event rules, and enabling or disabling these rules. Supports an ever-growing range of events from Alibaba Cloud services. Region-specific, cross-zone distributed cluster deployment provides powerful disaster recovery capabilities and delivers up to 99.95% service availability. Provides event governance capabilities and supports event flow control, event replay, and event retry policies.

​Google Cloud's Eventarc is a fully managed platform that enables developers to build event-driven architectures by routing events from various sources to supported destinations. It allows for the collection of events occurring within a system and publishes them to a specified destination, facilitating the creation of loosely coupled services that react to state changes. ​Eventarc supports events from Google Cloud services, custom applications, and third-party SaaS providers, providing flexibility in event-driven application design. Developers can create triggers to route events to various destinations, such as Cloud Run services, allowing for responsive and scalable application architectures. Eventarc ensures secure event delivery by integrating with Identity and Access Management (IAM), enabling fine-grained access control over event ingestion and processing.